type F5-6 V-IV that appears to be evolving off the main sequence. angular distance of 7.4"
A faint star will have a high number. This star is a yellow-orange main sequence dwarf of spectral
Graffias is a F6IV subgiant star based on the spectral type. What a glorious sight and sketch!Where in Scorpius is this double/triple star group found?Worth the effort as it is a great "double double" and sometimes a little more if you have aperature.Worth the effort as it is a great "double double" and sometimes a little more if you have aperature.Thanks Ed, I found it. Please re-enable javascript to access full functionality.During an excellent night on top of the Roque de los Muchachos (La Palma, 2426 mtrs), I pointed my scope at these two close doubles and was surprised to be able to split A (yellow) and B of Xi at 240x with my 10 inch newt.The separation should be about 1,2" according to below diagram. OBJECT 7: tough LX 90 test double - XI Scorpii - R.A. 16h 02' / DEC (-)11 14 - … Useful star catalogue numbers for the star include: Xi/Ksi Sco A, HR 5978, Wo 9540 A, Hip 78727, HD 144070, BD-10 4237 A, SAO 159665, WDS 16044-1122, ADS 9909 A, and Struve 1998 A. Xi Scorpii A has a relatively close companion "B" of similar spectral and luminosity type, which also appears to be evolving off the main sequence.
Beginning and Intermediate Imaging
According to one source, it has around 6.3 times its luminosity. Graffias is not part of the Scorpius constellation outline but is within the borders of the constellation.
Xi Scorpii magnitudes 4.9 and 7.3, separation 7.5 arcseconds Struve 1999 Scorpii mags 7.5 and 8.0, sep 11.8” This article by Tammy Plotner written for Orion Telescopes and Binoculars is for the Weekend of July 19th - July 21st, explaining Crater J. Herschel, Crater Flamsteed, Nu and Xi Scorpii, Sirsalis Rille and M22 β Scorpii A is itself a β² Scorpii also has two sub-components, designated β Scorpii C and β Scorpii E, orbiting at an angular separation of 0.1328 arcseconds with an orbital period of 39 years. Graffias (Xi Scorpii) Star Facts. probably elliptical and has a strong probability of being
catalogues and names: x Sco, HR 5977, HD 144069, SAO 159665, BD -10 4237 A, WDS 16044-1122AB: constellation: Scorpius A-B seen in my 5 inch refractor, so I am going to try tonight. OBJECT: Xi Scorpii TELESCOPE: Meade 10" f/10 SCT DATE: 06.28.1996 TIME: 12:53 am EDT TRANSPARENCY: Fair SEEING: Good MAGNIFICATION: 179x LOCATION: Vicksburg, MI COMMENTS: This one appears to be a "Double Double" like Epsilon Lyrae. Lambda Scorpii consists of three components: two B-type stars, appearing bluish in colour, and a faint pre-main sequence companion. – Antares (Alpha Scorpii), the most luminous star in the constellation, is located 550 light years away and shines with an apparent visual magnitude of 0.96, making it the 16th brightest star in the entire sky.
It probably has a mass
For more information about stars including spectral and luminosity
– Shaula (Lambda Scorpii), the second most luminous star in Scorpius, is a multiple system located around 700 light years from our solar system with an apparent magnitude of 1.62. ASO is a major contributor in NEO studies of Near Earth Objects, comets, and also in the sciences of archeology, paleontology, earth science and science education of the general public.
as 32.6 AUs
Component C at 8" had a nice contrasting blue color.Still in the same FOV there was STF 1999, separated at 11''.
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